单选题Directions: This task is the same as Task 1. The 5
questions or unfinished statements are numbered 41 through 45. Each day every person in the United States throws away
more than five pounds of garbage. There is more garbage now than ever before and
most of it is made up of packages and cans in which we buy our food. The
traditional way of getting rid of solid wastes is quickly becoming inadequate.
Many cities are experimenting with newer ways of handing their growing piles of
garbage. One of these new ways is "recycling" (循环使用). Through
recycling usable materials are taken out of garbage and made into something
else. These usable parts of garbage are put through the cycle of going from a
raw material to a finished product again. In some cities a
machine called hydrapulper is being used to help recycle garbage. A hydrapuiper
is like a huge mixing machine. The garbage is dropped onto a conveyor belt that
feeds the machine. At the same time, water is pumped into the hydrapulper. With
a mixing action, the hydrapulper throws out the heavy metal objects that can
later be sold as waste metal, the rest of the garbage—paper, food, plastic,
rubber, glass, wood, leaves, and other items—fails apart. The waste is then
mixed with water and carried to another piece of equipment where glass, sand,
and small pieces of metal are thrown out. With the hydrapulper,
up to 95 percent of the original garbage is made again useful. The rest is
turned into furnace ash.
单选题
Traditionally, garbage is thought to be ______.
A. able to recycle but difficult to handle
B. something that can be reused
C. a raw material for making new products
D. a worthless burden to big cities
【正确答案】
D
【答案解析】
单选题
How does the hydrapulper Work?
A. It pumps water into garbage and mixes it.
B. It separates garbage into useful and useless things.
C. It collects heavy metal objects for selling.
D. It throws away glass and sand from garbage.
【正确答案】
B
【答案解析】
单选题
A lot of cities are trying new ways to treat garbage mainly because
______.
A. they need new materials made from garbage
B. they are short of useful materials
C. their traditional ways of dealing with wastes are not efficient
D. their environment is becoming more and more dirty
【正确答案】
C
【答案解析】
单选题
What is done to the waste that are useless when the new way is used?
A. They are thrown away.
B. They are stored in a certain place.
C. They are turned into solid objects.
D. They are burnt.
【正确答案】
D
【答案解析】
单选题
What is the purpose of this passage?
A. To introduce how the hydrapulper deals with garbage.
B. To tell what the writer thinks of the idea of getting rid of solid
wastes.
C. To explain why garbage should be recycled.
D. To describe an experiment in which a hydrapulper is used.